62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/*
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Copyright (C) 2016-2019 The University of Notre Dame
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This software is distributed under the GNU General Public License.
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See the file LICENSE for details.
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*/
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#ifndef FS_INTERNAL
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#define FS_INTERNAL
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#include "fs.h"
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#include "cdromfs.h"
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#include "diskfs.h"
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struct fs {
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char *name;
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const struct fs_ops *ops;
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struct fs *next;
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};
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struct fs_volume {
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struct fs *fs;
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struct device *device;
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uint32_t block_size;
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int refcount;
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union {
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struct cdrom_volume cdrom;
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struct diskfs_superblock disk;
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};
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};
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struct fs_dirent {
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struct fs_volume *volume;
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uint32_t size;
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int inumber;
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int refcount;
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int isdir;
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union {
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struct cdrom_dirent cdrom;
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struct diskfs_inode disk;
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};
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};
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struct fs_ops {
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struct fs_dirent *(*volume_root) (struct fs_volume *v);
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struct fs_volume *(*volume_open) (struct device *d);
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int (*volume_close) (struct fs_volume *d);
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int (*volume_format) (struct device *d);
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struct fs_dirent * (*lookup) (struct fs_dirent *d, const char *name);
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struct fs_dirent * (*mkdir) (struct fs_dirent *d, const char *name);
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struct fs_dirent * (*mkfile) (struct fs_dirent *d, const char *name);
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int (*read_block) (struct fs_dirent *d, char *buffer, uint32_t blocknum);
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int (*write_block) (struct fs_dirent *d, const char *buffer, uint32_t blocknum);
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int (*list) (struct fs_dirent *d, char *buffer, int buffer_length);
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int (*remove) (struct fs_dirent *d, const char *name);
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int (*resize) (struct fs_dirent *d, uint32_t blocks);
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int (*close) (struct fs_dirent *d);
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};
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#endif
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